[TransalperNZ]

lol, nice Clint.

Padders, I can pretty much set the camera to do any combination of things, I like to set mine now days to 'Loop + Forward' and a '1 minute loop time'... so yes this way once I tell it to keep a loop it keeps that last minute and then continues keeping until I press stop.
I then press record to start a new loop and later when something good happens record again to keep that loop+ forward etc.
It can be set to do a conventional start stop or just keep a loop like 1minute/30seconds (what ever you choose) each side of the button press without needing to press stop but some things go on and you miss the end with that.
Camera is a set focus device so no re-focusing can happen.
I'm guessing what you saw was from my hand held camera with zoom at the Waimati Forests slimy bouldery river, that lost focus a couple of times... or maybe YT's compression blurring the smaller features of distance a bit like is noticeable in the wider easier crossing just before.